marine semi-synthetic gear oil

PRODUCT
DATA SHEET
MARINE SEMI-SYNTHETIC GEAR OIL
Marine Semi-Synthetic Gear Oil is a high performance, synthetic blend, gear oil engineered
specifically for marine applications. It is formulated utilizing the most advanced Extreme
Pressure additives, delivering superior protection for high torque/high horsepower marine
engines. Marine Semi-Synthetic Gear Oil is GL-5 rated to provide maximum protection under
Extreme Pressure and exceeds the requirements of all major OEM marine engine manufacturers.
It has been formulated without hazardous chemicals, like Antimony, that could harm the marine
environment, making Marine Semi-Synthetic Gear Oil safer to handle and easy to dispose of
after use.
Applications
Recommended for all outboard and stern drives units, fresh and salt water applications
requiring GL-4 or GL-5 performance standards.
Features and Benefits
Excellent Anti-wear properties
Excellent Performance in presence of
water
Excellent Extreme Pressure properties
Superior Micro-pitting protection
Extends equipment life, longer life for gears and bearings
in extreme conditions as high-speeds high-horse power
applications.
Superior Extreme Pressure and Corrosion lubrication
under wet conditions. Maintains maximum protection
even when contaminated with up 25% of water.
Delivers ultimate film strength providing gear protection
to prevent excessive wear under high or shock load
conditions encountered with harsh engagement, power
reversal and propeller entanglement.
The Extreme pressure additive system provides
maximum protection against micro-pitting fatigue wear.
General Description
Marine Semi-Synthetic Gear Oil is a high performance gear lubricant; formulated with the
highly refined full Synthetic and Mineral base fluids. It is incomparable and proprietary Extreme
Pressure additive system delivers superior protection against wear, micro-pitting, rust, corrosion,
oxidation and water intrusion. Marine Semi-Synthetic Gear Oil is also an Eco-friendly and
safe product such does not contain any hazardous chemicals. Marine Semi-Synthetic Gear Oil
is a GL-5 performance rated and meets all major OEM manufactures requirements.
Product: 99740
Page 1 of 2
1/3/2012
With continual research and development, Bel-Ray Company, Inc. reserves the right to change the information
contained herein. The Company is not responsible for misuse or misapplication of its products.
Bel-Ray Company, Inc.  P.O. Box 526  Farmingdale, NJ 07727 USA
TEL +1 732-938-2421  FAX +1 732-938-4232  www.belray.com
MARINE SEMI-SYNTHETIC GEAR OIL
TYPICAL PROPERTIES
Product No.
99740
ISO Viscosity Grade
150
Viscosity, ASTM D445
@ 40ºC, cSt
@ 100ºC, cSt
149
15.3
Viscosity, ASTM D2161
@ 100°F, SUS
@ 210°F, SUS
689
79.2
Viscosity Index, ASTM D2270
104
Copper Strip Corrosion, ASTM D130, 3 hrs @ 100ºC, rating
1b
Pour Point, ASTM D97, ºC (ºF)
-28 (-18)
Rust Test, ASTM D665, Procedure A & B
Pass
Falex EP Test, ASTM D3233 Method B
Dry, Non-seizure Load, lbf
Wet (plus 25 % water), Non-seizure Load, lbf
3750
4000
4-Ball EP Test, ASTM D2783
Weld Load, kg
Load Wear Index, kg
315
58
4-Ball Wear Test, ASTM D4172, @ 1200 rpm, 40 kg, 1 hr, 75ºC
Scar diameter, mm
0.40
Timken EP Test, ASTM D2782
OK Load, kg (lb)
45.4 (100)
Flash Point, ASTM D92, ºC (ºF)
221 (430)
Specific Gravity, ASTM D1298, 60/60ºF
Color
0.9027
Dark Blue
Page 2 of 2
1/3/2012
With continual research and development, Bel-Ray Company, Inc. reserves the right to change the information
contained herein. The Company is not responsible for misuse or misapplication of its products.
Bel-Ray Company, Inc.  P.O. Box 526  Farmingdale, NJ 07727 USA
TEL +1 732-938-2421  FAX +1 732-938-4232  www.belray.com